Tetsuo may refer to: Tetsuo (given name) Tetsuo: The Iron Man Tetsuo II: Body Hammer Tetsuo: The Bullet Man Tetsuo, a character in Akira (manga)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0acf3b97a46968c800811fbc01bab21650655460ee03a11b3b4c4b88739e13. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab6929a4-c9f2-48a1-bca7-36d84873599c.json and https://artists.proofprofile.net/proofs/artist/ab6929a4-c9f2-48a1-bca7-36d84873599c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a3f4de81ec964c73d053d4f246dc4a7697e4661db64a91efe59fb95c6277c4. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc638b66a06765569b02d8679c3e0defc84d2091d01956c4baa3502d12ecbf71d. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a3f4de81ec964c73d053d4f246dc4a7697e4661db64a91efe59fb95c6277c4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914dc617ef9b598e0398e8488838662300aff540cb2440b02db89789346ab4f1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc157b4080e32799204ad92b7733325b5dba2e3016d434f36c729020e2f2b6b00. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709a41d1fc071ace9742037ec2f27f17890cd067d138dc776c07ad4fc628a5d1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424a58309fe6b3000f8cb2c1f53f653b01efbdfc7e988f6466ce674618040eb2. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e7e795a085f9b66186ae44137d6b5baf6724746ae86b064722f6a6ebee179d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136f85fc91819df6df505cc65410124ae13a186d723fcba8352caf6f3bcd8134. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4d7e99f2193eb132108c5cb283d14f175ddce934186a6922a1efb9cc30dc47. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21728962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760b1d7c564d54ddd5ecdd6d201d9c705097a70535e13c642ec873ffc0810270. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1901159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca73d411a06361c766d06357ceb9c6057a3dc613269b59e41bc8b22f40555dc4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8LD1970855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6001cf48e477730c396e7b90815ac5ffe0d11d468f56a72daa255c6f38f01ed8. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA41937231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb109f6041c825571bf2db57abc191c81c3d1d0be4210b43df8c493756dd26c0e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN51915973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c21f50a7cc84576325c355b068dd47414dbee489d580e48f63a186c8d4930f3. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN81902200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcdcf04baf14618f771c4e4e6865a8161c3bf4d59a28617c7e863b2bad5120d. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2017724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a95b1691ec061198c0d8dface3187e79ba5c76156ec57db7f7a128036dc3db2. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52036948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0560a30cd662a2c3718a50a1c71842682f41c1284b5d2410b0e8678fbb7c5d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2012529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5ca2ee4f6363cd563aff368d43c6998120a618492df87b144cf9e92bb691c5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYW2180305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca40bbb61e5a09d44b40adc1cc08d6a44a2527cd0fad4abcb80c6d98cdff332. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2386136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33c1f5abec95b9371cb8099444e3d5fbedfc875a899c972df41d86d30494c6a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62426033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1322c61be87ddcdd67d7b53117d02c0ef8912d610f8ae0561b21b510929a7575. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62427828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aac694c53bd21afe7bb9acf322b53568ae10cba54c5253f546e639323103056. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62427830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9587d88b73f2c5c926fbb7d9fb99bcd43cdeb031a0fd9769bf256d0c2716a7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62427842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f522edaf7f0bdb18a19e2e47af5372b0a0b044e39165f8b86bf20d462d95de6. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62427829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c2009d1a5dfadc6efdd7a3f4f48e0d35f15cbab1c63885a6e91ee7b52a3fa6. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62427826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4fafadc9bfda793573e51fe8ad6250d92318a2fbaf0ec17413b15c03f70453. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62427825.